Machine for making wire-glass.



PATENTED DEC. 25, 1906.

N. PRANZEN. MACHINE FOR MAKING WIRE GLASS.

APPLICATION FILED AUG. 13.1906.

INVENTOI'Z m w w WITNESSES:

UNIED STATES PATENT FFICE.

NIUKLAS FRANZEN, ()F WALTON, PENNSYLVANIA, ASSIGNOR TO THE PITTSBURGPLATE GLASS COMPANY, OF PITTSBURG. PENNSYL- VANIA, A CORPORATION OFPENNSYLVANIA.

Specification of Letters Patent.

Patented Dec. 25, 1906.

Application filed August 13, 1906. Serial 110.330. 251.

T all whom it may concern:

Be it known that I, NICKLAS FRANZEN, a citizen of the United States,residing at Walton, in the county of Allegheny and State ofPennsylvania, have invented or discovered certain new and usefulImprovements in Machines for Making Wire-Glass, of which improvementsthe following is a specification.

- My invention relates to improvements in machines for makingwire-glass; and the objects of my improvement are simplicity ofstructure, economy in operation, and superiority in quality of product.7

My present invention involves the use of a itted roll, such as isdescribed and claimed in Letters Patent No. 823,112, granted me June 12,1906that is, a roll in the surface of which are formed pits or pocketsor culsde-sac wherein small quantities of air are entrapped by themolten glass, the entrapped air forming an insulation and preventingchilling contact between the glass and the surface of the roll. A sheetspread by or on such a roll will have a surface rendered uneven by vthearrow a. at one side of roll 1, forms, together with the excrescences orprotuberances of unchilled glass. These protrusions may be subsequentlyreduced and a well finished or polished surface produced.

My im rovement involves the laying down or sprea ing u on the surface ofsuch a pitted roll the wire w 'ch is to be embedded n the finishedsheet, teeming the molten glass upon such a wire-covered surface of sucharoll, and 1 spreading the glass so teemed to sheet form in the sheet asit is spread. The sheet may be removed from the surface of the pittedioll and its excrescences of unchilled glass reduced to a plane:

A machine embodying my improvement is illustrated in the accompanyingdrawings, which form part of this specification.

The two figures show the machine diagrammatically in transverse verticalsection. A structural detail is shown in alternative form, as willpresently be described.

The pitted roll 1 is arranged, preferably, in horizontal position torotate, as indicated by A chute 2, arranged above and u per surface ofroll 1, a hopper-like receptacl e wherein a batch of molten glass may betcemed and carried. A roll 3, arranged between rolls 1 and 3.

the throat of this hopiper-like receptacle,

itself forming part of sai receptacle, cooperates with said pitted rollto spread thereon to sheet form the molten glass teemed into saidhopper-like receptacle. A third roll 4 is arranged on the opposite sideof the pitted roll from the chute, and this roll cooperates with thesurface of said pitted roll and With roll 3 to spread the wire upon theupper surface of the rotating pitted roll.

The operation of the parts thus far described will readily beunderstood. The wire A is carried between rolls 1 and 4, over the uppersurface of the pitted roll, and into the ass A batch of mo ten glass Bis then teemed between chute 2 and the pitted roll. This molten glasspasses freely through the meshes of the wire and en? ters and partlyfills the culs-de-sac of the pitted rol entrap ing the insulating-air,as alreadly describe Roll 1 is then rotated in the direction indicatedby arrow a, and roll 3 is rotated (preferably positively rotated) in thedirection indicated by arrow 1), and the glass is thusispread into thewirecontaining sheet 0. This sheet of Wire-glass C'has a surface such ashas already been describeda surface rendered uneven by protrusions ofunchilled glass. The means employed for reducin this surface to a planeand finished condition are shown in alternative form in the drawings.-In Fig. 1 a table 5 travels beneath roll 1 and receives sheet C as it isformed. Cooperating with table 5 is a roll 6, beneath which the sheet 0is comressed and its surface brought to a plane.

11 Fig. 2 I have shown a pair of rolls 7 and 8,

tabe9.

In this s ecification and in the claims I have used t e term wire. Imean to in.- clude in that term not only the wire fabric or netting nowcommonly used in the manufacture of wire-glass, butany other. materialalso of suitable character and form which may be found desirable forincorporating in sheets of plate-glass.

I claim as m invention 1. In a machine for makin Wire-glass, thecombination of a horizontal y-arranged ro- 5 said hopper-likereceptacle, andcooperating tating pitted roll, a chute arranged adjacentto said itted roll and forming therewith a hopperke receptacle whereinmolten glass may. be teemed and carried, means for holdwire in contactwith the itted roll, such in hoIdin'g me ans permitting t e feedingfor-- combination of a horizontal -a1ranged ro-' tatingpitted roll, achute arranged adjacent to said pitted roll and forming with the uppersurface thereof a hopper-like receptacle wherein molten glass may beteemed and carried, two rolls arranged upon either side of said pittedroll and cooperating therewith to spread upon the upper surface of saidpipted rollthe wire to.be incorporated in the ished sheet, one of saidlast-named rolls cooperating with said rotating pitted roll to spread tosheet form molten glass teemed into the, aforesaid hopper-likereceptacle,

' means-for progressively receiving the sheet s'iead as atoresaid andfor reducing to a p ane the excrescences of unchilled glass or t ed uponthe surface of said sheet by the pitsin-said pitted roll, substantiallyas -de scribed.

3. In a machine for makin wireglass, the combination of a horizontaly-arranged rotating(pitted roll, a chute arranged adjacent to em pittedroll, above and at one side thereof, and forming therewith a hopper-likereceptacle wherein molten glass ma' be teemed and carried, a rollclosing the t oat of said hopper-like receptacle and cooperating withsaid pitted roll to spread thereon to sheet form the molten glass teemedinto sa d hoppler-like receptacle, athird roll arranged out e oppositeside of said pitted roll from with said itted roll and with saidsecondnamed r01 to progressively s read the wire upon the upper surfaceof sai ittedroll as the latterrotates, and means or receiving the sheetspread upon the pitted roll as aforesaid and for reducing to a plane theexcrescences of unchilled glass formed upon the surface of said sheet bythe its in said pitted roll, substantially as descri ed.

4. Ina machine for making wire-glass, the combination of ahorizontally-arranged rotatingdpitted roll, a chute arranged adjacent tosai pitted roll, above and at one side thereof, and forming therewith ahopper-like receptacle wherein molten glass" may be teemed and carried,a roll closing the throat of said hopperdike receptacle and cooperatingwith said pitted roll to spread thereonto sheet form the molten glassteemed into said hopper-dike receptacle, and a third roll arranged onthe opposite side of said pitted roll from saidhoppe'r-likereceptacle,and coo crating with said pitted roll and withsaid second-named roll to progressively spread the Wire upon the uppersurface of said pitted roll, as the latter rotates, substantially asdescribed.

5. In a machine for making wirelass, the combination of' a rotatingpitte roll, a spreading-roll arranged in such relation to said pittedroll as to form therewith a hopper- In testimony whereof I have hereuntoset my hand.

NroKLAs FRANZEN.

W tnesses:

BAYARD I-I.Cmars'rY, FRIEDA E. WoLFr.

